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selftests: kvm: fix overlapping addresses in memslot_perf_test

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vm_create allocates memory and maps it close to GPA.  This memory
is separate from what is allocated in subsequent calls to
vm_userspace_mem_region_add, so it is incorrect to pass the
test memory size to vm_create_default.  Just pass a small
fixed amount of memory which can be used later for page table,
otherwise GPAs are already allocated at MEM_GPA and the
test aborts.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-05-28 15:10:58 -04:00
parent a3d2ec9d3c
commit 000ac42953
1 changed files with 1 additions and 1 deletions
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tools/testing/selftests/kvm/memslot_perf_test.c
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@ -267,7 +267,7 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots,
data->hva_slots = malloc(sizeof(*data->hva_slots) * data->nslots);
TEST_ASSERT(data->hva_slots, "malloc() fail");
data->vm = vm_create_default(VCPU_ID, mempages, guest_code);
data->vm = vm_create_default(VCPU_ID, 1024, guest_code);
pr_info_v("Adding slots 1..%i, each slot with %"PRIu64" pages + %"PRIu64" extra pages last\n",
max_mem_slots - 1, data->pages_per_slot, rempages);